Vibrator



FIG. 1 is a front perspective view of the design;

FIG. 2 is a front elevation view of the design;

FIG. 3 is a rear elevation view of the design;

FIG. 4 is a right side elevation view of the design;

FIG. 5 is a left side elevation view of the design;

FIG. 6 is a top plan view of the design; and,

FIG. 7 is a bottom plan view of the design.

The broken lines shown in the drawings are for illustrative purposes only and form no part of the claimed design. 

CLAIM The ornamental design for a vibrator, as shown and described. 